YOUR OWN SHAPE - 8x8 LED Matrix Arduino

1// 2-dimensional array of row pin numbers:
2const int row[8] = {
3  2, 7, 19, 5, 13, 18, 12, 16
4};
5
6// 2-dimensional array of column pin  numbers:
7const int col[8] = {
8  6, 11, 10, 3, 17, 4, 8, 9
9};
10
11//  2-dimensional array of pixels:
12int pixels[8][8];
13
14typedef bool charMapType[8][8];
15
16const  charMapType heart = {
17  {0, 0, 0, 0, 0, 0, 0, 0},
18  {0, 1, 1, 0, 0, 1, 1,  0},
19  {1, 1, 1, 1, 1, 1, 1, 1},
20  {1, 1, 1, 1, 1, 1, 1, 1},
21  {0, 1, 1,  1, 1, 1, 1, 0},
22  {0, 0, 1, 1, 1, 1, 0, 0},
23  {0, 0, 0, 1, 1, 0, 0, 0},
24  {0, 0, 0, 0, 0, 0, 0, 0}
25};
26
27// angry robot
28// const charMapType angryRobot  = {
29//   {1, 1, 1, 1, 1, 1, 1, 1},
30//   {1, 0, 1, 1, 1, 1, 0, 1},
31//   {1,  0, 0, 1, 1, 0, 0, 1},
32//   {1, 1, 1, 1, 1, 1, 1, 1},
33//   {1, 1, 0, 1, 1,  0, 1, 1},
34//   {1, 0, 0, 0, 0, 0, 0, 1},
35//   {1, 1, 1, 0, 0, 1, 1, 1},
36//   {1, 1, 1, 1, 1, 1, 1, 1}
37// };
38
39//squares
40// const charMapType squares  = {
41//   {1, 1, 1, 1, 1, 1, 1, 1},
42//   {1, 0, 0, 0, 0, 0, 0, 1},
43//   {1,  0, 1, 1, 1, 1, 0, 1},
44//   {1, 0, 1, 0, 0, 1, 0, 1},
45//   {1, 0, 1, 0, 0,  1, 0, 1},
46//   {1, 0, 1, 1, 1, 1, 0, 1},
47//   {1, 0, 0, 0, 0, 0, 0, 1},
48//   {1, 1, 1, 1, 1, 1, 1, 1}
49// };
50
51void setup() {
52  for (int thisPin  = 0; thisPin < 8; thisPin++) {
53    pinMode(col[thisPin], OUTPUT);
54    pinMode(row[thisPin],  OUTPUT);
55  }
56  setupMatrix();
57}
58
59void loop() {
60  displayLedPattern();
61}
62
63void  displayLedPattern(){
64  for (int thisRow = 0; thisRow < 8; thisRow++) {
65    digitalWrite(row[thisRow],  HIGH);
66    for (int thisCol = 0; thisCol < 8; thisCol++) {
67      // get the  state of the current pixel;
68      int thisPixel = pixels[thisRow][thisCol];
69      // when the row is HIGH and the col is LOW,
70      // the LED where they  meet turns on:
71      digitalWrite(col[thisCol], thisPixel);
72      // turn  the pixel off:
73      if (thisPixel == LOW) {
74        digitalWrite(col[thisCol],  HIGH);
75      }
76    }
77    // take the row pin low to turn off the whole  row:
78    digitalWrite(row[thisRow], LOW);
79  }
80}
81
82void setupMatrix(){
83  for (int x = 0; x < 8; x++) {
84    for (int y = 0; y < 8; y++) {
85      bool  v = squares[x][y];
86      if(v){
87        pixels[x][y] = LOW;
88      }else{
89        pixels[x][y] = HIGH;
90      }
91    }
92  }
93}